\documentclass{standalone}
\usepackage{tikz}
\usepackage{ctex,siunitx,ninecolors}
\setCJKmainfont{Noto Serif CJK SC}
\usepackage{tkz-euclide}
\usepackage{amsmath}
\usepackage{wasysym}
\usetikzlibrary{patterns, calc}
\usetikzlibrary{decorations.pathmorphing, decorations.pathreplacing, decorations.shapes}
\begin{document}
\small
\begin{tikzpicture}[>=latex]
  \foreach \x in {-0.8,-0.6,...,0.8}
  { \draw[->,azure6] (\x,-1.2) --(\x,1.2);}
  \draw[red6,densely dashed](1.6,0)arc(0:180:1.6 and 0.95);
  \draw[red6,densely dashed](1.25,0)arc(0:180:1.25 and 0.70);
  \draw[red6,densely dashed](1.0,0)arc(0:180:1.0 and 0.5);
  \draw[red6,fill=white,postaction={decorate},decoration={markings,mark={at position 0.5 with {\arrow{>}}}}](1.6,0)arc(0:-180:1.6 and 0.95);
  \draw[red6,fill=white,postaction={decorate},decoration={markings,mark={at position 0.5 with {\arrow{>}}}}](1.25,0)arc(0:-180:1.25 and 0.70);
  \draw[red6,fill=white,postaction={decorate},decoration={markings,mark={at position 0.5 with {\arrow{>}}}}](1.0,0)arc(0:-180:1.0 and 0.5);
  \node at (0,1.2)[above]{$B$};
  \node (bz) at (1.5,-1.2)[above right]{电力线};
  \draw[thin](bz.west)--++(120:1.02)(bz.west)--++(140:0.74)(bz.west)--++(160:0.55);
\end{tikzpicture}
\end{document}